Double barrel knife gun



FIG. 1 is a perspective view of the double barrel knife gun, showing our new design;

FIG. 2 is a side elevational view when viewed from the left side;

FIG. 3 is side elevational view when viewed from the right side;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view, showing our new design. 

The ornamental design for double barrel knife gun, as shown and described. 